集群運(yùn)維自動化工具ansible的安裝與使用（包括模塊與playbook使用）
更新時間：2014年07月14日 16:06:10 投稿：hebedich
Ansible是一款很好的基于ssh方案的，替代品，他能夠大大簡化Unix管理員的自動化配置管理與流程控制方式。它利用推送方式對客戶系統(tǒng)加以配置，這樣所有工作都可在主服務(wù)器端完成。
10、優(yōu)化ansible-playbook運(yùn)行時間
默認(rèn)playbook是進(jìn)行客戶端fact搜集，一般如果你配置里沒有使用fact的話，可以關(guān)閉這樣就能減少運(yùn)行時間
沒有優(yōu)化的時候
[root@puppet ansible]# cat shell.yml --- - hosts: vpn remote_user: test # gather_facts: False tasks: - name: echo hi shell: echo "hi" [root@puppet ansible]# time ansible-playbook shell.yml -u test --private-key=/root/denglei -k [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). SSH password: PLAY [vpn] ******************************************************************** GATHERING FACTS *************************************************************** ok: [172.17.0.10] TASK: [echo hi] *************************************************************** changed: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=2 changed=1 unreachable=0 failed=0 real 0m8.396s user 0m0.796s sys 0m0.158s [root@puppet ansible]# time ansible-playbook shell.yml -u test --private-key=/root/denglei -k [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). SSH password: PLAY [vpn] ******************************************************************** GATHERING FACTS *************************************************************** ok: [172.17.0.10] TASK: [echo hi] *************************************************************** changed: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=2 changed=1 unreachable=0 failed=0 real 0m3.309s user 0m0.724s sys 0m0.108s [root@puppet ansible]# time ansible-playbook shell.yml -u test --private-key=/root/denglei -k [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). SSH password: PLAY [vpn] ******************************************************************** GATHERING FACTS *************************************************************** ok: [172.17.0.10] TASK: [echo hi] *************************************************************** changed: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=2 changed=1 unreachable=0 failed=0 real 0m3.409s user 0m0.716s sys 0m0.099s
可以看到第一次8s，后2次都是3s
下面是優(yōu)化后（未使用fact）
[root@puppet ansible]# cat shell.yml --- - hosts: vpn remote_user: test gather_facts: False tasks: - name: echo hi shell: echo "hi" [root@puppet ansible]# time ansible-playbook shell.yml -u test --private-key=/root/denglei -k [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). SSH password: PLAY [vpn] ******************************************************************** TASK: [echo hi] *************************************************************** changed: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=1 changed=1 unreachable=0 failed=0 real 0m2.758s user 0m0.585s sys 0m0.096s [root@puppet ansible]# time ansible-playbook shell.yml -u test --private-key=/root/denglei -k [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). SSH password: PLAY [vpn] ******************************************************************** TASK: [echo hi] *************************************************************** changed: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=1 changed=1 unreachable=0 failed=0 real 0m2.359s user 0m0.565s sys 0m0.077s
運(yùn)行時間就是2s
11、自定義模塊
默認(rèn)的模塊放到/usr/share/ansible
在這個目錄創(chuàng)建一個目錄hostname，然后把下面文件放到此目錄
15:03:26 # cat /usr/share/ansible/hostname/hostname
#!/bin/bash
#This script is modify system hostname
set -e
# This is potentially dangerous
source ${1}
OLDHOSTNAME="$(hostname)"
CHANGED="False"
if [ ! -z "$hostname" -a "${hostname}x" != "${OLDHOSTNAME}x" ];
then
hostname $hostname
OLDHOSTNAME="$hostname"
CHANGED="True"
fi
echo "hostname=${OLDHOSTNAME} changed=${CHANGED}"
exit 0
查看一下vpn的當(dāng)前hostname
15:03:29 # ansible vpn -m shell -a "hostname" -u test --private-key=denglei -k SSH password: 172.17.0.10 | success | rc=0 >> ip-10-10-32-34
然后編寫playbook
15:04:14 # cat /etc/ansible/hostname.yml - name: Test the hostname file hosts: vpn tasks: - name: Set the hostname hostname: hostname=ip-10-10-32-34
運(yùn)行這個模塊
15:04:37 # ansible-playbook hostname.yml -u test --private-key=denglei -M /usr/share/ansible/hostname -k SSH password: PLAY [Test the hostname file] ************************************************* GATHERING FACTS *************************************************************** ok: [172.17.0.10] TASK: [Set the hostname] ****************************************************** ok: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=2 changed=0 unreachable=0 failed=0
然后修改一下hostname.yml的主機(jī)名
16:20:00 # cat hostname.yml - name: Test the hostname file hosts: vpn tasks: - name: Set the hostname hostname: hostname=ip-10-10-32-34-test
在playbook運(yùn)行
16:26:46 # ansible-playbook hostname.yml -u test --private-key=denglei -M /usr/share/ansible/hostname -k -K -s SSH password: sudo password [defaults to SSH password]: PLAY [Test the hostname file] ************************************************* GATHERING FACTS *************************************************************** ok: [172.17.0.10] TASK: [Set the hostname] ****************************************************** changed: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=2 changed=1 unreachable=0 failed=0 root@ip-10-10-10-10:/etc/ansible 16:26:55 # ansible vpn -m shell -a "hostname" -u test --private-key=denglei -k SSH password: 172.17.0.10 | success | rc=0 >> ip-10-10-32-34-test
12、playbook擴(kuò)展var
擴(kuò)展var就是在playbook的yml里寫入變量，在執(zhí)行的時候制定變量從而執(zhí)行，大大的提供了重復(fù)使用率
下面做個測試
[root@puppet ansible]# ansible vpn -m shell -a "ls -l /tmp/" -u test --private-key=/root/denglei -k SSH password: 172.17.0.10 | success | rc=0 >> total 96 -rw-r--r-- 1 root root 41692 May 21 13:02 config -rw-r--r-- 1 root root 1228 Jun 12 18:24 install_pptpd_vpn.sh -rwxr-xr-x 1 root root 7 Jun 13 19:33 server -rw-rw-r-- 1 test test 7 Jun 14 17:07 server-test -rw-rw-r-- 1 test test 7 Jun 18 01:44 test-server-1 -rw-rw-r-- 1 test test 7 Jun 18 00:50 test-server-2 -rw-rw-r-- 1 test test 7 Jun 18 00:50 test-server-3 -rw-r--r-- 1 root root 82 Jun 12 18:21 test.log -rw-r--r-- 1 root root 290 Jun 12 18:21 test.sh -rw-r--r-- 1 root root 2444 Apr 28 2012 vpn_centos6.sh -rw------- 1 root root 727 Jun 10 18:21 yum_save_tx-2014-06-10-18-21UrqDAp.yumtx -rw-rw-r-- 1 zabbix zabbix 4664 Jun 14 00:30 zabbix_agentd.log -rw-rw-r-- 1 zabbix zabbix 5 Jun 14 00:30 zabbix_agentd.pid
可以看到有test-server-1文件
在看看playbook文件內(nèi)容
[root@puppet ansible]# cat delete_vars.yml
---
- hosts: {{host}}
remote_user: {{user}}
gather_facts: {{gather}}
tasks:
- name: if system is centos,then rm /tmp/test-server-1
shell: rm -rf /tmp/test-server-1
when: ansible_os_family == "RedHat"
執(zhí)行前先檢測一下語法是否有問題，使用--synctax-check
[root@puppet ansible]# ansible-playbook delete_vars.yml --private-key=/root/denglei --extra-vars "host=vpn user=test gather=False" -k --syntax-check
[WARNING]: The version of gmp you have installed has a known issue regarding
timing vulnerabilities when used with pycrypto. If possible, you should update
it (ie. yum update gmp).
ERROR: Syntax Error while loading YAML script, delete_vars.yml
Note: The error may actually appear before this position: line 2, column 11
---
- hosts: {{host}}
^
This one looks easy to fix. YAML thought it was looking for the start of a
hash/dictionary and was confused to see a second "{". Most likely this was
meant to be an ansible template evaluation instead, so we have to give the
parser a small hint that we wanted a string instead. The solution here is to
just quote the entire value.
For instance, if the original line was:
app_path: {{ base_path }}/foo
It should be written as:
app_path: "{{ base_path }}/foo"
We could be wrong, but this one looks like it might be an issue with
missing quotes. Always quote template expression brackets when they
start a value. For instance:
with_items:
- {{ foo }}
Should be written as:
with_items:
- "{{ foo }}"
This one looks easy to fix. YAML thought it was looking for the start of a
hash/dictionary and was confused to see a second "{". Most likely this was
meant to be an ansible template evaluation instead, so we have to give the
parser a small hint that we wanted a string instead. The solution here is to
just quote the entire value.
For instance, if the original line was:
app_path: {{ base_path }}/foo
It should be written as:
app_path: "{{ base_path }}/foo"
可以看到有問題
解決方法是把var的變量前后添加""或者''
[root@puppet ansible]# cat delete_vars.yml
---
- hosts: "{{host}}"
remote_user: "{{user}}"
gather_facts: "{{gather}}"
tasks:
- name: if system is centos,then rm /tmp/test-server-1
shell: rm -rf /tmp/test-server-1
when: ansible_os_family == "RedHat"
然后再檢測一下
[root@puppet ansible]# ansible-playbook delete_vars.yml --private-key=/root/denglei --extra-vars "host=vpn user=test gather=False" -k --syntax-check [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). playbook: delete_vars.yml
沒有問題了，在運(yùn)行一下
[root@puppet ansible]# ansible-playbook delete_vars.yml --private-key=/root/denglei --extra-vars "host=vpn user=test gather=False" -k
[WARNING]: The version of gmp you have installed has a known issue regarding
timing vulnerabilities when used with pycrypto. If possible, you should update
it (ie. yum update gmp).
SSH password:
PLAY [vpn] ********************************************************************
TASK: [if system is centos,then rm /tmp/test-server-1] ************************
fatal: [172.17.0.10] => error while evaluating conditional: ansible_os_family == "RedHat"
FATAL: all hosts have already failed -- aborting
PLAY RECAP ********************************************************************
to retry, use: --limit @/root/delete_vars.retry
172.17.0.10 : ok=0 changed=0 unreachable=1 failed=0
無法運(yùn)行，原因是我yml里制定了獲取fact信息后，判斷如果是redhat系列系統(tǒng)才刪除，而我在運(yùn)行的指定不收集fact，下面在指定收集fact
[root@puppet ansible]# ansible-playbook delete_vars.yml --private-key=/root/denglei --extra-vars "host=vpn user=test gather=True" -k [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). SSH password: PLAY [vpn] ******************************************************************** GATHERING FACTS *************************************************************** ok: [172.17.0.10] TASK: [if system is centos,then rm /tmp/test-server-1] ************************ changed: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=2 changed=1 unreachable=0 failed=0
可以看到運(yùn)行成功了
[root@puppet ansible]# ansible vpn -m shell -a "ls -l /tmp/" -u test --private-key=/root/denglei -k SSH password: 172.17.0.10 | success | rc=0 >> total 92 -rw-r--r-- 1 root root 41692 May 21 13:02 config -rw-r--r-- 1 root root 1228 Jun 12 18:24 install_pptpd_vpn.sh -rwxr-xr-x 1 root root 7 Jun 13 19:33 server -rw-rw-r-- 1 test test 7 Jun 14 17:07 server-test -rw-rw-r-- 1 test test 7 Jun 18 00:50 test-server-2 -rw-rw-r-- 1 test test 7 Jun 18 00:50 test-server-3 -rw-r--r-- 1 root root 82 Jun 12 18:21 test.log -rw-r--r-- 1 root root 290 Jun 12 18:21 test.sh -rw-r--r-- 1 root root 2444 Apr 28 2012 vpn_centos6.sh -rw------- 1 root root 727 Jun 10 18:21 yum_save_tx-2014-06-10-18-21UrqDAp.yumtx -rw-rw-r-- 1 zabbix zabbix 4664 Jun 14 00:30 zabbix_agentd.log -rw-rw-r-- 1 zabbix zabbix 5 Jun 14 00:30 zabbix_agentd.pid
文件刪除了
13、tags
使用tag可以讓playbook選擇性的運(yùn)行程序
查看一下客戶端情況
[root@puppet ansible]# ansible vpn -m shell -a "ls -l /tmp/" -u test --private-key=/root/denglei -k SSH password: 172.17.0.10 | success | rc=0 >> total 92 -rw-r--r-- 1 root root 41692 May 21 13:02 config -rw-r--r-- 1 root root 1228 Jun 12 18:24 install_pptpd_vpn.sh -rwxr-xr-x 1 root root 7 Jun 13 19:33 server -rw-rw-r-- 1 test test 7 Jun 14 17:07 server-test -rw-rw-r-- 1 test test 7 Jun 18 00:50 test-server-2 -rw-rw-r-- 1 test test 7 Jun 18 00:50 test-server-3 -rw-r--r-- 1 root root 82 Jun 12 18:21 test.log -rw-r--r-- 1 root root 290 Jun 12 18:21 test.sh -rw-r--r-- 1 root root 2444 Apr 28 2012 vpn_centos6.sh -rw------- 1 root root 727 Jun 10 18:21 yum_save_tx-2014-06-10-18-21UrqDAp.yumtx -rw-rw-r-- 1 zabbix zabbix 4664 Jun 14 00:30 zabbix_agentd.log -rw-rw-r-- 1 zabbix zabbix 5 Jun 14 00:30 zabbix_agentd.pid
帶有tag的yml文件
[root@puppet ansible]# cat delete_vars_tags.yml
---
- hosts: "{{host}}"
remote_user: "{{user}}"
gather_facts: "{{gather}}"
tasks:
- name: if system is centos,then rm /tmp/test-server-1
shell: rm -rf /tmp/test-server-1
when: ansible_os_family == "RedHat"
tags: server-1
- name: if system is centos,then rm /tmp/test-server-2
shell: rm -rf /tmp/test-server-2
when: ansible_os_family == "RedHat"
tags: server-2
做一下錯誤檢測
[root@puppet ansible]# ansible-playbook delete_vars_tags.yml --private-key=/root/denglei --extra-vars "host=vpn user=test gather=True" --tags server-2 -k --syntax-check [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). playbook: delete_vars_tags.yml
沒問題在運(yùn)行
[root@puppet ansible]# ansible-playbook delete_vars_tags.yml --private-key=/root/denglei --extra-vars "host=vpn user=test gather=True" --tags server-2 -k [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). SSH password: PLAY [vpn] ******************************************************************** GATHERING FACTS *************************************************************** ok: [172.17.0.10] TASK: [if system is centos,then rm /tmp/test-server-2] ************************ changed: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=2 changed=1 unreachable=0 failed=0
查看一下客戶端的文件情況
[root@puppet ansible]# ansible vpn -m shell -a "ls -l /tmp/" -u test --private-key=/root/denglei -k SSH password: 172.17.0.10 | success | rc=0 >> total 88 -rw-r--r-- 1 root root 41692 May 21 13:02 config -rw-r--r-- 1 root root 1228 Jun 12 18:24 install_pptpd_vpn.sh -rwxr-xr-x 1 root root 7 Jun 13 19:33 server -rw-rw-r-- 1 test test 7 Jun 14 17:07 server-test -rw-rw-r-- 1 test test 7 Jun 18 00:50 test-server-3 -rw-r--r-- 1 root root 82 Jun 12 18:21 test.log -rw-r--r-- 1 root root 290 Jun 12 18:21 test.sh -rw-r--r-- 1 root root 2444 Apr 28 2012 vpn_centos6.sh -rw------- 1 root root 727 Jun 10 18:21 yum_save_tx-2014-06-10-18-21UrqDAp.yumtx -rw-rw-r-- 1 zabbix zabbix 4664 Jun 14 00:30 zabbix_agentd.log -rw-rw-r-- 1 zabbix zabbix 5 Jun 14 00:30 zabbix_agentd.pid
從上面測試可以看到，如果playbook使用了tag，并且在運(yùn)行中指定tag，那么運(yùn)行的時候僅允許此tag的信息
下面是測試運(yùn)行時候不帶tag的情況
先創(chuàng)建文件
[root@puppet ansible]# cat copy.yml
---
- hosts: vpn
remote_user: test
tasks:
- name: copy local server to client /tmp/server-test
template: src=/tmp/server dest=/tmp/test-{{item}}
with_items:
- server-1
- server-2
- server-3
[root@puppet ansible]# ansible-playbook copy.yml --private-key=/root/denglei -k
[WARNING]: The version of gmp you have installed has a known issue regarding
timing vulnerabilities when used with pycrypto. If possible, you should update
it (ie. yum update gmp).
SSH password:
PLAY [vpn] ********************************************************************
GATHERING FACTS ***************************************************************
ok: [172.17.0.10]
TASK: [copy local server to client /tmp/server-test] **************************
changed: [172.17.0.10] => (item=server-1)
changed: [172.17.0.10] => (item=server-2)
ok: [172.17.0.10] => (item=server-3)
PLAY RECAP ********************************************************************
172.17.0.10 : ok=2 changed=1 unreachable=0 failed=0
[root@puppet ansible]# ansible vpn -m shell -a "ls -l /tmp/" -u test --private-key=/root/denglei -k
SSH password:
172.17.0.10 | success | rc=0 >>
total 96
-rw-r--r-- 1 root root 41692 May 21 13:02 config
-rw-r--r-- 1 root root 1228 Jun 12 18:24 install_pptpd_vpn.sh
-rwxr-xr-x 1 root root 7 Jun 13 19:33 server
-rw-rw-r-- 1 test test 7 Jun 14 17:07 server-test
-rw-rw-r-- 1 test test 7 Jun 19 19:02 test-server-1
-rw-rw-r-- 1 test test 7 Jun 19 19:02 test-server-2
-rw-rw-r-- 1 test test 7 Jun 18 00:50 test-server-3
-rw-r--r-- 1 root root 82 Jun 12 18:21 test.log
-rw-r--r-- 1 root root 290 Jun 12 18:21 test.sh
-rw-r--r-- 1 root root 2444 Apr 28 2012 vpn_centos6.sh
-rw------- 1 root root 727 Jun 10 18:21 yum_save_tx-2014-06-10-18-21UrqDAp.yumtx
-rw-rw-r-- 1 zabbix zabbix 4664 Jun 14 00:30 zabbix_agentd.log
-rw-rw-r-- 1 zabbix zabbix 5 Jun 14 00:30 zabbix_agentd.pid
然后再不指定tag運(yùn)行
[root@puppet ansible]# ansible-playbook delete_vars_tags.yml --private-key=/root/denglei --extra-vars "host=vpn user=test gather=True" -k [WARNING]: The version of gmp you have installed has a known issue regarding timing vulnerabilities when used with pycrypto. If possible, you should update it (ie. yum update gmp). SSH password: PLAY [vpn] ******************************************************************** GATHERING FACTS *************************************************************** ok: [172.17.0.10] TASK: [if system is centos,then rm /tmp/test-server-1] ************************ changed: [172.17.0.10] TASK: [if system is centos,then rm /tmp/test-server-2] ************************ changed: [172.17.0.10] PLAY RECAP ******************************************************************** 172.17.0.10 : ok=3 changed=2 unreachable=0 failed=0 [root@puppet ansible]# ansible vpn -m shell -a "ls -l /tmp/" -u test --private-key=/root/denglei -k SSH password: 172.17.0.10 | success | rc=0 >> total 88 -rw-r--r-- 1 root root 41692 May 21 13:02 config -rw-r--r-- 1 root root 1228 Jun 12 18:24 install_pptpd_vpn.sh -rwxr-xr-x 1 root root 7 Jun 13 19:33 server -rw-rw-r-- 1 test test 7 Jun 14 17:07 server-test -rw-rw-r-- 1 test test 7 Jun 18 00:50 test-server-3 -rw-r--r-- 1 root root 82 Jun 12 18:21 test.log -rw-r--r-- 1 root root 290 Jun 12 18:21 test.sh -rw-r--r-- 1 root root 2444 Apr 28 2012 vpn_centos6.sh -rw------- 1 root root 727 Jun 10 18:21 yum_save_tx-2014-06-10-18-21UrqDAp.yumtx -rw-rw-r-- 1 zabbix zabbix 4664 Jun 14 00:30 zabbix_agentd.log -rw-rw-r-- 1 zabbix zabbix 5 Jun 14 00:30 zabbix_agentd.pid
可以看到如果不知道tag，那么運(yùn)行的時候，會全部運(yùn)行。
FAQ：
1、出現(xiàn)Error: ansible requires a json module, none found!
SSH password:
172.17.0.4 | FAILED >> {
"failed": true,
"msg": "Error: ansible requires a json module, none found!",
"parsed": false
}
原因是python版本過低，要不升級python要不就安裝python-simplejson，下面是官方的話
On the managed nodes, you only need Python 2.4 or later, but if you are running less than Python 2.5 on the remotes, you will also need:
安裝完成后，在查看
SSH password:
172.17.0.4 | success >> {
"changed": false,
"ping": "pong"
}
2、默認(rèn)ansible是使用key驗證的，如果使用密碼登陸的服務(wù)器，使用ansible的話，要不修改ansible.cfg配置文件的ask_pass = True給取消注釋，要不就在運(yùn)行命令時候加上-k，這個意思是-k, --ask-pass ask for SSH password
3、如果客戶端不在know_hosts里將會報錯
paramiko: The authenticity of host '172.17.0.5' can't be established. The ssh-rsa key fingerprint is 397c139fd4b0d763fcffaee346a4bf6b. Are you sure you want to continue connecting (yes/no)?
如果想解決此問題，需要修改ansible.cfg的#host_key_checking = False取消注釋
4、如果出現(xiàn)
[root@puppet ansible]# ansible zabbix -m shell -a "echo $TERM" -u denglei --private-key=/root/denglei 172.17.0.2 | FAILED => FAILED: not a valid DSA private key file 172.17.0.4 | FAILED => FAILED: not a valid DSA private key file
需要你在最后添加參數(shù)-k
[root@puppet ansible]# ansible zabbix -m shell -a "echo $TERM" -u denglei --private-key=/root/denglei -k SSH password: 172.17.0.2 | success | rc=0 >> xterm 172.17.0.4 | success | rc=0 >> xterm
您可能感興趣的文章:
- python自動化之Ansible的安裝教程
- linux 自動化運(yùn)維工具ansible的使用詳細(xì)教程
- 集群運(yùn)維自動化工具ansible之使用playbook安裝zabbix客戶端
- ansible作為python模塊庫使用的方法實例
- Python利用ansible分發(fā)處理任務(wù)
- 集中化管理平臺Ansible詳解
- python將ansible配置轉(zhuǎn)為json格式實例代碼
- linux系統(tǒng)Ansible自動化運(yùn)維部署方法
- python ansible服務(wù)及劇本編寫
- Python集中化管理平臺Ansible介紹與YAML簡介
- Python自動化運(yùn)維之Ansible定義主機(jī)與組規(guī)則操作詳解
相關(guān)文章
這篇文章主要介紹了rsync備份海量文件時占用大量內(nèi)存的解決辦法,需要的朋友可以參考下2016-07-07
WampServer設(shè)置apache偽靜態(tài)出現(xiàn)404 not found及You don''t have permiss
這篇文章主要介紹了WampServer設(shè)置apache偽靜態(tài)出現(xiàn)404 not found及You don't have permission to access / on this server解決方法,較為詳細(xì)的分析了幾種常見情況,非常具有實用價值,需要的朋友可以參考下2015-10-10
服務(wù)器指的是網(wǎng)絡(luò)環(huán)境下能為其它客戶機(jī)（如PC機(jī)、智能手機(jī)、ATM等終端甚至是火車系統(tǒng)等大型設(shè)備）提供某種服務(wù)的專用計算機(jī),它比普通計算機(jī)運(yùn)行更快、負(fù)載更高、價格更貴,服務(wù)器具有高速的CPU運(yùn)算能力、長時間的可靠運(yùn)行、強(qiáng)大的I/O外部數(shù)據(jù)吞吐能力以及更好的擴(kuò)展性2023-08-08
這篇文章主要介紹了DELL服務(wù)器配置RAID的教程,本文以DELL R430服務(wù)器為例子，通過圖文并茂的形式給大家介紹的非常詳細(xì)，對大家的學(xué)習(xí)或工作具有一定的參考借鑒價值，需要的朋友可以參考下2023-07-07
兩臺服務(wù)器之間無密碼傳輸數(shù)據(jù)和操作的方法
這篇文章主要介紹了兩臺服務(wù)器之間無密碼傳輸數(shù)據(jù)和操作的方法,需要的朋友可以參考下2017-04-04
基于HTTP協(xié)議實現(xiàn)的小型web服務(wù)器的方法
這篇文章主要介紹了基于HTTP協(xié)議實現(xiàn)的小型web服務(wù)器的方法，文中通過示例代碼介紹的非常詳細(xì)，對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值，需要的朋友們下面隨著小編來一起學(xué)習(xí)學(xué)習(xí)吧2007-08-08
Windows下搭建MQTT服務(wù)器的詳細(xì)教程
這篇文章主要介紹了Windows下搭建MQTT服務(wù)器的方法,基于mosquitto實現(xiàn),有需要的朋友可以參考下2023-08-08
這篇文章主要介紹了通過cmd連接阿里云服務(wù)器,在這里講一下買完服務(wù)器的要做的第一步就是去服務(wù)器的后臺做相應(yīng)的操作，本文通過兩種方法給大家講解連接服務(wù)器，需要的朋友可以參考下2022-04-04
使用?Koa?+?TS?+?ESLlint?搭建node服務(wù)器的過程詳解
這篇文章主要介紹了使用?Koa?+?TS?+?ESLlint?搭建node服務(wù)器,本文給大家介紹的非常詳細(xì)，對大家的學(xué)習(xí)或工作具有一定的參考借鑒價值，需要的朋友可以參考下2022-05-05
一直以來都是服務(wù)器防火墻開啟443端口就可以了，https是443還是433，就讓我困惑了一陣子，后來我搞清楚了，是443，每次加SSL，放行443端口就可以了，大部分時間沒出什么問題2022-10-10